Semi Gantry Crane

The semi-gantry crane is engineered and manufactured in strict accordance with national lifting machinery standards, delivering excellent site adaptability and stable operating performance. Its core strengths are listed below:

1.Lightweight Structure & Convenient Installation

The semi-gantry frame adopts bolted connections between the main girder and supporting legs. The lightweight box-section main girder features high structural rigidity. Thanks to its split modular design, the crane is convenient for transportation and field assembly. Mass on-site welding work is not required, rendering it applicable to all types of workshops constrained by unilateral spatial conditions.

2.Stable Running Performance, No Load Sway Under Rated Heavy Loads

The crane long-travel mechanism adopts split drive configuration equipped with integrated three-in-one gear reducers; variable frequency speed regulation is available as an optional configuration. The crane achieves smooth start-up and braking without mechanical impact. Matched with CD/MD series electric wire rope hoists, the equipment effectively avoids load sway during prolonged heavy-duty operation, lowering the risk of collisions between the crane and suspended workpieces.

3.Comprehensive Safety Protection

Standard configurations comprise an overload limiter, upper & lower lifting limit switches, a full-unit emergency stop button, and undervoltage protection devices. The full range of safety devices complies with national safety codes for lifting machinery, which can effectively prevent potential safety risks including overloading, workpiece falling and equipment collision.

4.High Efficiency, Energy Conservation, Low Noise & Excellent Durability

The hoisting mechanism is fitted with a low-headroom electric wire rope hoist. It boasts low transmission loss, quiet operation and oil-tight sealing with zero leakage. Designed for high-frequency daily material handling inside workshops, it cuts down power consumption and long-term expenses on spare part replacement throughout its service life.

5.Flexible Operation with Multiple Optional Control Modes

Three operation modes are available: pendant control, wireless remote control, and cabin control. They can be configured individually or in combination. The control panel has clear markings and is easy to learn, adapting to different workshop working environments.

Technical Parameters

Product Application

1. Machinery Manufacturing Workshops

When installed in wall-mounted form, the crane is applied for hoisting moulds, casting blanks and finished products; loading and unloading workpieces for machine tools; transporting semi-finished items between production processes; and the disassembly & assembly of heavy components during major equipment overhaul.

2.Assembly Workshops

It performs precise lifting of large assemblies to designated assembly stations, aids production lines in component docking and fastening, and enables disassembly and assembly of heavy units within narrow single-side working spaces, thus comprehensively boosting overall assembly efficiency.

3.Warehouses & Logistics Premises

The crane is used for cargo loading and unloading, goods storage and retrieval on storage racks, as well as material sorting and transportation within indoor and semi-open narrow aisles. It effectively solves material handling difficulties at venues where overhead travelling cranes cannot be deployed.

4.Equipment Maintenance Workshops

The crane hoists motors, gearboxes and complete machines to carry out disassembly, overhaul and reassembly work. Designed for wall-mounted maintenance zones with unilateral spatial limitations, it greatly alleviates the workload of manual material handling.

Product Operation Guide

The crane’s hoisting, long-travel and cross-travel mechanisms can be operated via pendant control, wireless remote control or cabin control. These control modes support equipment start and stop, forward and reverse operation, as well as speed regulation.

The control panel is equipped with a power indicator light, emergency stop button, start button and key switch.

Before operation, check the surrounding area for personnel and obstacles, and operate the crane in strict accordance with relevant operating regulations.

Product Video

FAQ

1.Fault : The motor fails to start and emits abnormal loud noise after pressing the operation button

Root Cause:

1.Low supply voltage;

2.Circuit phase loss;

3.Poor contact within the control circuit.

Troubleshooting Solutions:

1. Adjust the power supply voltage to the rated value;

2.Inspect and rectify the circuit fault causing phase loss

3.Maintain the contacts of the control circuit to guarantee good electrical conduction

2.Fault : The crane long-travel mechanism runs normally, while the hoisting and cross-travel mechanisms fail to actuate.

Root Cause:

1.Poor contact of the conductor rail for the hoisting system

2.Broken wires on the current collector

Troubleshooting Solutions:

1.Repair the conductor rail to achieve tight contact and reliable electrical conduction;

2.Reconnect fractured cables and implement qualified insulation protection.

3.Fault : The crane travelling mechanism can only run in a single direction and fails to respond when switched to reverse travel.

Root Cause:

1.Open-circuited contacts of the reverse control device;

2.Damaged limit switch;

3.Breakage in the main power line.

Troubleshooting Solutions:

1.Repair the faulty control contacts;

2.replace the defective limit switch;

3.conduct sectional inspection on the main circuit to locate and clear the fault point.

4.Fault : The hoisting mechanism cannot operate, while the crane travelling and cross-travel mechanisms work properly.

Root Cause:

1.Breakage of the pendant control cable;

2.Damaged limit switch;

3.Disconnection of motor winding leads.

Troubleshooting Solutions:

1.Replace the defective control cable;

2.Replace the faulty limit switch;

3.Reconnect the broken motor winding terminals and carry out insulation treatment afterwards.